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IEEE Transactions on Circuits and Systems II: Analog and Digital Signal Processing

Issue 5 • Date May 1994

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Displaying Results 1 - 8 of 8
  • New nonlinear adaptive FIR digital filter for broadband noise cancellation

    Publication Year: 1994, Page(s):355 - 360
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (424 KB)

    The structure and the adaptive algorithm of a new nonlinear adaptive FIR digital filter. Called nonlinear delayed N-path adaptive FIR (NDNAFIR) digital filter, is presented for cancelling broadband noise from signals containing sharp edges. The filter structure is obtained by decomposing a FIR digital filter into N delayed parallel subfilters which facilitates high speed implementation. Adjustable... View full abstract»

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  • Limit cycle behavior of pipelined recursive digital filters

    Publication Year: 1994, Page(s):351 - 355
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (440 KB)

    The important new class of pipelined IIR filters, called scattered look-ahead (SLA) filters, is analyzed for limit cycle behavior, including both overflow and quantization limit cycles. Direct form (DF), minimum roundoff noise (MRON) form and apparent direct form (ADF) are selected as basis structures of SLA filters. The z-domain is extensively searched as a function of the number of pipelining st... View full abstract»

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  • Recursive bitstream conversion: the reverse mode

    Publication Year: 1994, Page(s):329 - 336
    Cited by:  Papers (6)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (636 KB)

    Further results are presented of the recursive bit-stream conversion technique. In particular the sample rate conversion problem is studied to convert a low frequency bit parallel sequence with high word accuracy (such as a PCM signal) into a high frequency sequence with low word accuracy (ultimately to the 1-bit bit-stream format). It is shown that recursive bit-stream conversion is a generalizat... View full abstract»

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  • Design of arbitrary FIR log eigenfilters

    Publication Year: 1994, Page(s):361 - 364
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (304 KB)

    An efficient method is proposed for the design of FIR filters with arbitrary log magnitude and phase responses in this paper. The method is based on an iterative weighted eigenfilter approach to obtain a least-squares approximation to the given log magnitude function, and the weighting function at each iteration is updated using the result of the previous iteration, which leads to the optimal appr... View full abstract»

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  • Fast multidelay block transform-domain adaptive filters based on a two-dimensional optimum block algorithm

    Publication Year: 1994, Page(s):337 - 345
    Cited by:  Papers (7)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (700 KB)

    Three fast and flexible block transform-domain gradient adaptive digital filters (ADF's) for finite impulse response (FIR) adaptive filtering are presented. The proposed ADF's employ a two-dimensional optimum block algorithm (OBA) in order to obtain a time-varying convergence factor which is optimized in a least square (LS) sense for fast and accurate adaptation, and to allow one to choose an appr... View full abstract»

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  • Finite-precision analysis of the pipelined ADPCM coder

    Publication Year: 1994, Page(s):364 - 368
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (456 KB)

    Roundoff error analysis of a pipelined adaptive differential pulse code modulation (ADPCM) coder is presented. The pipelined coder has been developed by employing the relaxed look-ahead technique. It is shown that the precision of the quantized prediction error and those of the predictor coefficients are critical and analytical expressions for lower bounds on these precisions are derived. In addit... View full abstract»

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  • Design of digital all-pass filters using a weighted least squares approach

    Publication Year: 1994, Page(s):346 - 351
    Cited by:  Papers (30)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (480 KB)

    This paper considers the minimax design of digital all-pass filters via the FIR and IIR approximations. For the FIR digital all-pass filter design, the problem is appropriately formulated so that a recently-developed weighted least squares (WLS) algorithm can be used to efficiently solve the associated minimization problem. We also design FIR digital all-pass filters using the WLS algorithm to hav... View full abstract»

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  • A simplified continuous phase modulator technique

    Publication Year: 1994, Page(s):321 - 328
    Cited by:  Papers (42)  |  Patents (33)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (748 KB)

    A low cost GMSK (Gaussian minimum shift keying) modulation technique is presented. GMSK is chosen as an example although the technique is suitable for any continuous phase constant envelope modulation with discriminator, differential or coherent detection in the targeted receiver. In this technique, a fractional-N synthesizer is used to control the instantaneous frequency and phase of the phase lo... View full abstract»

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Aims & Scope

This title ceased production in 2003. The current updated title is IEEE Transactions on Circuits and Systems II: Express Briefs.

Full Aims & Scope